Help needed with CEL9 Cylinder position sensor

jordancivic · Post by **jordancivic** » Tue Mar 23, 2010 11:19 am

Hi all

Looking for some help with a CEL9 for cylinder position sensor,

Car is a 2005 Civic Sport with B18c5 and TWM ITBs, Hondata S300.

Has run fine for months, now throwing CEL9 and running poorly, checks i have carried out -

Checked resistance of the 3 sensors at dissy, all ~400ohms
Checked resistance at ecu plug, ~400ohms
Checked for short to ground on each sensor - none
S300 connects and logs correctly
CEL9 comes back immediatly when cleared

New Dissy on order from Honda, to rule out, but what else to check?

Post by **Spunkster** » Tue Mar 23, 2010 12:27 pm

Try the ECU in a known good car to see if the problem is ECU related or vehicle specific.

jordancivic · Post by **jordancivic** » Tue Mar 23, 2010 12:37 pm

Will do Spunkster, but may have trouble finding another OBD2 car.

ECU is Hondata supplied OBD1 ecu with OBD2 sockets ( Black enamel cover )